SimBiology Desktop

The SimBiology® desktop is a user interface with a set of integrated tools
that are designed to facilitate building, simulating, and analyzing models
of dynamic systems such as pharmacokinetic/pharmacodynamic (PK/PD) and
mechanistic systems biology models. It lets you build models interactively
and perform model analyses such as simulation, sensitivity calculation, and
parameter estimation. You can also build standalone applications for model
distribution and simulation.